Partial Discharge Pulse Shape Recognition using an Inductive Loop Sensor Articles uri icon

publication date

  • October 2010

start page

  • 105706


  • 10


  • 21

International Standard Serial Number (ISSN)

  • 0957-0233

Electronic International Standard Serial Number (EISSN)

  • 1361-6501


  • Partial discharges (PD) are a clear ageing agent on insulating materials used in high-voltage electrical machines and cables. For this reason, there is increasing interest in measuring this phenomenon in an effort
    to forecast unexpected failures in electrical equipment. In order to
    focus on harmful discharges, PD pulse shape analysis is being used as an
    insulation defect identification technique. In this paper, a simple,
    inexpensive and high-frequency inductive loop sensor will be used to
    detect and acquire PD pulses. Several measurements will be made on some
    controlled test cell geometries in order to characterize PD pulse shapes
    for different discharge sources. The sensor identification capability
    has been checked in an insulation system where two simultaneous PD
    sources were active.